Annual height growth of study trees after topping by crown classes (in cm).
| Crown Class | ||||
|---|---|---|---|---|
| Species | Dominant | Co-dominant | Intermediate | Overtopped |
| Beech, American | 50 | 37 | 37 | — |
| Hickory | 43 | 53 | 37 | 18 |
| Oak, chestnut | 116 | 102 | 107 | 76 |
| Oak, northern red | 110 | 107 | 99 | — |
| Oak, white | 56 | 56 | 27 | 35 |
| Pine, Virginia | 41 | 30 | 12 | — |
| Sweetgum | 64 | 63 | 26 | 05 |
| Sycamore | 85 | 43 | — | — |
| Yellow-poplar | 131 | 120 | 79 | 114 |
| Average | 77 | 68 | 47 | 28 |